FR1229397A
Expired / Lapsed
FR
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Dual pen with alternative ball tips
Assignee: Umberto Legnani
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Filing: 1959-06-30
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Granted: 1960-09-06
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Expires: 1979-06-30
Abstract
No abstract record available.
Inventors
- 👤 Umberto Legnani
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-02 15:52
CPC Classifications
B; B43; B43K; B43K24/00; B43K24/10; B43K24/16; B43K24/163
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References Cited (Backward Citations)
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